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Which of the following is correct for ac...

Which of the following is correct for acid buiter? [salt = S, acid = A]

A

` P^(K_4) =P^(H) +log""([S])/([A]) `

B

` P^(H) =P^(K_a) +log ""([S])/([A]) `

C

` [H^(+) ]=10 ^(-P^(K_a) )`

D

` P^(H) =-log ""([S])/([A]) `

Text Solution

Verified by Experts

The correct Answer is:
B
Henderson.s equation
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AAKASH SERIES-IONIC EQUILIBRIUM -LECTURE SHEET (EXERCISE -III LEVEL -I (MAIN ) (Straight Objective Type Questions))
  1. IM NaCl and IM HCI are present in an aqueous solution. The solution is

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  2. A buffer solution contains a weak acid HA and A . When small quantity ...

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  3. Which of the following is correct for acid buiter? [salt = S, acid = A...

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  4. On diluting a buffer solution, its pH :

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  5. For the buffer solution containing NH(4)OH and NH(4) CI, P^(H) of the ...

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  6. An acidic buffer contains equal concentration of acid and salt . The d...

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  7. K(a) for HCN is 5 xx 10^(-10) at 25^(@)C . For maintaining a constant ...

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  8. pH of a mixture of HA and A^(-) buffer is 5. Kb of A^(-) =10 ^(-10 )...

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  9. A buffer solution contains 0.2 mole of NH4 OH and 0.2 mole of NH4 Cl...

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  10. From the following table {:("Buffer solution ", "Vol .of 0.1 M weak ac...

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  11. Which buffer solution has maximum pH?

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  12. Buffer capacity of acidic buffer solution is maximum when (1) P^(H)...

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  13. When 0.02 mole of an alkali is added to an acid buffer , the pH change...

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  14. Aqueous solution of KCI is neutral because

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  15. Assertion (A) : Aqueous solutions of ZnSO4 is neutral. Reason ( R ...

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  16. (A): Aqueous solution of Na(2)CO(3) is acidic in nature (R): Na^(+) ...

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  17. The no.of hydroxyl ions produced by one molecule of Na(2),CO(3) , on h...

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  18. The nature of 0.1 M solution of sodium bisulphate is

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  19. In the titration of acetic acid versus sodium hydroxide , the pH of th...

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  20. The P^(H) of an aqueous solution of NH4 CN( Ka of HCN is 9.2 xx 10^(-...

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